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Cheap flights from London Heathrow Airport to Mostar from £139

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — OMO
29 Dec — 5 Jan1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Mostar

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Mostar
Explore the most affordable flight options available from Heathrow to Mostar. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 November 2025.

Sat 29/1116:50LHR - OMO
2 stops30h 09mCroatia Airlines
Fri 5/1206:00OMO - LHR
2 stops35h 05mCroatia Airlines
Deal found 27/11£317
Sat 27/1217:50LHR - OMO
2 stops29h 10mMultiple Airlines
Tue 30/1215:30OMO - LHR
2 stops25h 20mMultiple Airlines
Deal found 28/11£366
Sat 27/1220:15LHR - OMO
2 stops26h 45mMultiple Airlines
Fri 2/106:00OMO - LHR
2 stops9h 45mMultiple Airlines
Deal found 27/11£441
Sat 27/1220:15LHR - OMO
2 stops26h 44mMultiple Airlines
Sat 3/115:45OMO - LHR
1 stop27h 10mMultiple Airlines
Deal found 28/11£450
Sat 27/1208:45LHR - OMO
1 stop4h 20mEurowings
Tue 30/1208:55OMO - LHR
1 stop24h 05mEurowings
Deal found 28/11£454
Sun 30/1110:30LHR - OMO
2 stops12h 29mMultiple Airlines
Fri 5/1206:00OMO - LHR
2 stops11h 50mMultiple Airlines
Deal found 27/11£457
Mon 1/1215:45LHR - OMO
2 stops22h 05mMultiple Airlines
Fri 5/1206:00OMO - LHR
2 stops15h 50mMultiple Airlines
Deal found 27/11£503
Fri 26/1220:25LHR - OMO
2 stops50h 34mMultiple Airlines
Fri 2/106:00OMO - LHR
2 stops28h 35mMultiple Airlines
Deal found 27/11£511
Sun 30/1108:30LHR - OMO
2 stops14h 30mMultiple Airlines
Mon 8/1206:00OMO - LHR
1 stop11h 05mMultiple Airlines
Deal found 27/11£538

Cheap flight deals from Heathrow to Mostar

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Mostar (OMO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 November 2025.

Round-trip from

£243

One-way from

£139
Air Serbia
  • Air Serbia
  • 3/3-6/3
  • 3 total stops
  • 72h 39m total
  • London to Mostar
Search Deals
4/1
  • 4/1
  • 2 total stops
  • 27h 35m total
  • London to Mostar
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Mostar that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 29 November 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Mostar that are best for you.

Fly from

Heathrow

Fly to

Mostar

Route

Depart

Return

Price

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Tue 3/3

20:25-23:59

2 stops50h 34m

Mostar

Fri 6/3

15:15-12:20

1 stop22h 05m

£243

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

17:50-00:00

2 stops29h 10m

Mostar

Tue 30/12

15:30-15:50

2 stops25h 20m

£366

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

20:15-00:00

2 stops26h 45m

Mostar

Fri 2/1

06:00-14:45

2 stops9h 45m

£441

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

20:15-23:59

2 stops26h 44m

Mostar

Sat 3/1

15:45-17:55

1 stop27h 10m

£450

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

08:45-14:05

1 stop4h 20m

Mostar

Tue 30/12

08:55-08:00

1 stop24h 05m

£454

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Fri 26/12

20:25-23:59

2 stops50h 34m

Mostar

Fri 2/1

06:00-09:35

2 stops28h 35m

£511

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

08:45-14:05

1 stop4h 20m

Mostar

Sat 3/1

15:45-17:55

1 stop27h 10m

£570

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sun 4/1

09:55-14:30

2 stops27h 35m

£139

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

06:30-00:00

2 stops40h 30m

£213

LondonMostar

LHR - OMO

LHROMO

London Heathrow

Sat 27/12

08:45-14:05

1 stop4h 20m

£230

Flights are sorted by cheapest return flights first.

Deals found on 26/11

Showing 1-10 of 14 results
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Best time to book a flight from Heathrow to Mostar

Have a flexible travel schedule? Discover the best time to fly to Mostar from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Mostar

What is the cheapest month to book a flight from London Heathrow Airport to Mostar?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Mostar (average of £124). Flying from London Heathrow Airport to Mostar in December is currently the most expensive (average of £252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Mostar. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Mostar from London Heathrow?

    For a flight from London Heathrow to Mostar, you will be flying into Mostar. Mostar (OMO) is just 4.6 mi from the center of the city. Mostar is the only Mostar airport and it handles 0 inbound flights from London Heathrow per day. 0 airlines have flights to Mostar from London Heathrow on a regular basis.

  • Can I find deals for flights from Heathrow to Mostar that include hotel bookings?

    Yes. In addition to deals on Heathrow to Mostar flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Mostar?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Mostar.

  • Can I find deals for business class flights from Heathrow to Mostar?

    Yes. Cheapflights offers flight deals from Heathrow to Mostar by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Mostar?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Mostar (average of £124). Flying from London Heathrow Airport to Mostar in December is currently the most expensive (average of £252). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Mostar?

Book flights to Mostar if you plan to visit one of these locations
Medjugorje

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How does Cheapflights help users find flights from Heathrow to Mostar?

Cheapflights makes it easy to find Heathrow to Mostar flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Mostar?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to Mostar by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to Mostar with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Mostar, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Mostar become cheaper?

Of course! You can now track prices for flights from Heathrow to Mostar and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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